[ios] RootCoordinator and view controller.

ios/showcase/root/sc_root_coordinator.mm

Index: ios/showcase/root/sc_root_coordinator.mm
diff --git a/ios/showcase/root/sc_root_coordinator.mm b/ios/showcase/root/sc_root_coordinator.mm
new file mode 100644
index 0000000000000000000000000000000000000000..a8377713db51ed91c59a9618673956bb62a3bcb7
--- /dev/null
+++ b/ios/showcase/root/sc_root_coordinator.mm
@@ -0,0 +1,27 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import "ios/showcase/root/sc_root_coordinator.h"
+
+#import "ios/clean/chrome/browser/ui/root/root_container_view_controller.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+@implementation SCRootCoordinator
+
+@synthesize baseViewController;
+
+- (void)start {
+  RootContainerViewController* viewController =
+      [[RootContainerViewController alloc] init];
+  UIViewController* contentViewController = [[UIViewController alloc] init];
+  contentViewController.view.backgroundColor = [UIColor greenColor];
+  viewController.contentViewController = contentViewController;
+  viewController.title = @"Root container";
+  [self.baseViewController pushViewController:viewController animated:YES];
+}
+
+@end